Valve-gear



(No Model.)

H. O. MOOERS.

' VALVE GEAR.

No. 346,492. Patented Aug. 3, 1886.

M w K 5% w w m 4 WV? h u mw I S E M M r U W UNITE STATES FFIQE.

HENRY O. MOOERS, OF TOLEDO, OHIO, ASSIGNOR TO \VILLIAM A. BUNTON,TRUSTEE, OF CAMBRIDGE, MASSACHUSETTS.

VALVE-GEAR.

SPECIFICATION forming part of Letters Patent No. 346,492, dated August3, 1886.

Application filed October 9, [885. Serial No. 179,410. (No model.)

T at whom it may concern.-

Be it known that I, HENRY (J. MooERs, a citizen of the UnitedStatesresiding at Toledo, in the county of Lucas and State of Ohio,

have invented certain new and useful Improvements in Valve-Gears; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it apper- IO tains to make and use the same.

My invention relates to valve-gear.

Heretofore links which were mounted on' a fixed pivot were ordinarlyoscillated by means of an eccentric.

I5 The object of my invention is to dispense with the use of aneccentric and operate the link directly from the main rod,and to improveand simplify the construction of the link, whereby the amount offriction and strain 2 upon the parts is reduced and the operation isrendered more nearly perfect.

Theiuvention is embodied in a link having an oscillating arm fixedthereto ator about at its middle point, the said arm being adapted to beconnected with the main or connecting rod of the engine, as will behereinafter particularly set forth.

In the accompanying drawings, in which similar letters indicatecorresponding parts in 0 the different figures, Figure l is a view, inside elevation, of a valve gear embodying my improvement. Fig. 2 is asection on line :10 w of Fig. 1; and Fig. 3 is a section on line y 3 ofFig. 1.

The letter A indicates the main frame of the engine, and B thelink,whieh is provided at or about its middle point with a shaft orjournahb, projecting at right angles therefrom. The link is securedpivotally to the main frame by placing the shaft or journal I) in thejournal-box a on the frame, the said journal or shaft I) being free toturn there. From the end of the journal 1) projects an arm, 0, which ispivoted or adapted to be attached to the 5 main or connecting rod of theengine in such manner or by the intervention of such means that verticalcurvilinear motion will be imparted to it. In this instance the meansconsists ofa block, (Z, secured pivotally to the arm 0 by the stud-shaft22, passing through the eye or socket c in the end of the arm, the endof said stud-shaft being fitted with a washer and nut suitable forretaining the block upon the arm. The face ofthe box (Z is grooved, andsaid groove may be fitted with metal gibsinits sides, as shown. \Vhenthe parts are in proper positior,the box (if is so located that the mainrod (indicated by broken lines) will pass through the groove. The groovein the box is ofsuch shape and size as to fit nicely upon said main rod.

D is a link-block, which may be provided with metal gibs, and is adaptedto be moved in the groove in the link the entire length thereof. Thisblock D is secured to the end 55 of an adjusting-rod, 0, attached to oneend of a lever, E, fulcrumed in the frame. The other end of the lever Ehas attached to it the valverod V. S is the tumbling or reverse shaft,also journaled on the frame, and provided with arms 8 and s, as shown,the arm 8 having at its end a hanger, M, to which is attached the blockD.

A rod, H, leading to within convenient reach of the engineer, as bybeing connected with the usual reverselever below the rack,

is rigidly attached to the end of the arms.

The main or connecting rod of the engine, when in action, produces aperpendicular motion at a point central with the box (1. Thisperpendicular motion of the rod therefore imparts a like motion to thebox I) and arm 0, which results in an oscillating movement of the link.

The link-block maybe moved by the engineer from one end of the link tothe other without disturbing the position of thelcvcr or hanger E or thevalve of the engine.

Vhen the link-block D is in line with shaft or journal b, or at thecenter of the link, oscil- 9o lating movement of the link will produceno effect at the valve, since the link will simply oscillate on theblock as a pivot.

\Vhen the link-block occupies a position above the center of the link,the valve willop- 5 crate to produce a go-ahead motion of the engine,and when below the center a back-up motion.

It will be understood that the position of the link-block can bedetermined by the engi- 10o strain on the parts.

neer, who can operate said block by means of to the shaft provided withmeans. for connectthe rod H,to lengthen or shorten the stroke or ing itto the main or connecting rod of an enthrow of the valve-rod on eitherside of the center in the usual manner, as may be desired.

It is evident from the foregoing that by my invention I produce asimple, durable, and correct valve-gear, reduce the cost ofconstruction, and lessen the amount of friction and My inventionfurthermore permits an increased length of fire-box, and consequently anincreased amount of grate-surface.

Itis obvious that instead ofthe box 11,1 may simply provide a pin toengage a slot or its equivalent in the main rod of the engine, andproduce the same motion above described.

The principal feature of my invention, in addition to verticaladjustment of the block, intsead of the link, is the simplicity ofconnection, and construction in which the link is oscillated by directconnection with the mainrod of the engine.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1s

1. The improved link for valve-gear, consisting ofthe link portionB,having fixed theregine, substantially as described.

2. The combination, in a valve-gear, of the link portion having integraltherewith the shaft or journal, and a rod provided with means forconnecting it to the main or connecting rod of an engine, the said linkportion being provided with a longitudinal groove or slot, in which arod communicating with the valves rests, and in which it may be adjustedto vary the throw.

3. The combination, in a valve gear, of the link portion having integraltherewith the shaft or journal and a rod provided with a box,or thelike, for attaching it to the main or driving shaft of the engine, thesaid link being slotted or grooved longitudinally, and a rodcommunicating with the valves. and havingits end resting in and capableofsliding in the said groove.

In testimony whereofIaffiX my signature in presence of two witnesses.

HENRY C. MOOERS. Witnesses:

L. G. RICHARDSON, Gno. S..BRowN.

